411 REFERENCE · Wiktionary
-yy
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Appendix:Variations of "yy"
Finnish
Suffix
noun
fi dialectal fi Front-vowel variant -uu
Usage notes
fi -yy is not found in any Standard Finnish words, only dialectal nouns (e.g. fi hyppyy, fi lykkyy).